Anti-Microorganism Activity of Chitosan and Nano-Silicon Dioxide Mixture on Damage Causing Strains Isolated from Postharvest Guava. - To, Dien T. V.; Van, Pham T. H.; Ngoc, Le S.; Le, Them T.; Phan, Huy C. T.; Manh, Tran D. (CET Journal - Chemical Engineering Transactions, 2022)